ART: Rename Handle hierarchy

Bring the names in line with normal OO principles: ConstHandle
becomes Handle, and Handle becomes MutableHandle.

Change-Id: I0f018eb7ba28bc422e3a23dd73a6cbe6fc2d2044
diff --git a/compiler/common_compiler_test.cc b/compiler/common_compiler_test.cc
index db9dcd4..fbaed9f 100644
--- a/compiler/common_compiler_test.cc
+++ b/compiler/common_compiler_test.cc
@@ -367,7 +367,7 @@
   MakeExecutable(method);
 }
 
-void CommonCompilerTest::CompileDirectMethod(ConstHandle<mirror::ClassLoader> class_loader,
+void CommonCompilerTest::CompileDirectMethod(Handle<mirror::ClassLoader> class_loader,
                                              const char* class_name, const char* method_name,
                                              const char* signature) {
   std::string class_descriptor(DotToDescriptor(class_name));
@@ -380,7 +380,7 @@
   CompileMethod(method);
 }
 
-void CommonCompilerTest::CompileVirtualMethod(ConstHandle<mirror::ClassLoader> class_loader,
+void CommonCompilerTest::CompileVirtualMethod(Handle<mirror::ClassLoader> class_loader,
                                               const char* class_name, const char* method_name,
                                               const char* signature) {
   std::string class_descriptor(DotToDescriptor(class_name));